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delegate.c
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delegate.c
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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% DDDD EEEEE L EEEEE GGGG AAA TTTTT EEEEE %
% D D E L E G A A T E %
% D D EEE L EEE G GG AAAAA T EEE %
% D D E L E G G A A T E %
% DDDD EEEEE LLLLL EEEEE GGG A A T EEEEE %
% %
% %
% MagickCore Methods to Read/Write/Invoke Delegates %
% %
% Software Design %
% Cristy %
% October 1998 %
% %
% %
% Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization %
% dedicated to making software imaging solutions freely available. %
% %
% You may not use this file except in compliance with the License. You may %
% obtain a copy of the License at %
% %
% https://imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
% See the License for the specific language governing permissions and %
% limitations under the License. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% The Delegates methods associate a set of commands with a particular
% image format. ImageMagick uses delegates for formats it does not handle
% directly.
%
% Thanks to Bob Friesenhahn for the initial inspiration and design of the
% delegates methods.
%
%
*/
/*
Include declarations.
*/
#include "MagickCore/studio.h"
#include "MagickCore/artifact.h"
#include "MagickCore/attribute.h"
#include "MagickCore/blob.h"
#include "MagickCore/client.h"
#include "MagickCore/configure.h"
#include "MagickCore/constitute.h"
#include "MagickCore/delegate.h"
#include "MagickCore/delegate-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/fx-private.h"
#include "MagickCore/image-private.h"
#include "MagickCore/linked-list.h"
#include "MagickCore/linked-list-private.h"
#include "MagickCore/list.h"
#include "MagickCore/memory_.h"
#include "MagickCore/memory-private.h"
#include "MagickCore/nt-base-private.h"
#include "MagickCore/option.h"
#include "MagickCore/policy.h"
#include "MagickCore/property.h"
#include "MagickCore/resource_.h"
#include "MagickCore/semaphore.h"
#include "MagickCore/signature.h"
#include "MagickCore/string_.h"
#include "MagickCore/token.h"
#include "MagickCore/token-private.h"
#include "MagickCore/utility.h"
#include "MagickCore/utility-private.h"
#include "MagickCore/xml-tree.h"
#include "MagickCore/xml-tree-private.h"
/*
Define declarations.
*/
#if defined(__APPLE__)
#include "TargetConditionals.h"
#if TARGET_OS_IOS || TARGET_OS_WATCH || TARGET_OS_TV
#define system(s) ((s)==NULL ? 0 : -1)
#endif // end iOS
#elif defined(__ANDROID__)
#define system(s) ((s)==NULL ? 0 : -1)
#endif
#define DelegateFilename "delegates.xml"
/*
Declare delegate map.
*/
static const char
*DelegateMap = (const char *)
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
"<delegatemap>"
" <delegate decode=\"bpg\" command=\""bpgdec" -b 16 -o "%o.png" "%i"; mv "%o.png" "%o"\"/>"
" <delegate decode=\"png\" encode=\"bpg\" command=\""bpgenc" -b 12 -q %~ -o "%o" "%i"\"/>"
" <delegate decode=\"browse\" stealth=\"True\" spawn=\"True\" command=\""xdg-open" https://imagemagick.org/; rm "%i"\"/>"
" <delegate decode=\"cdr\" command=\""uniconvertor" "%i" "%o.svg"; mv "%o.svg" "%o"\"/>"
" <delegate decode=\"cgm\" command=\""uniconvertor" "%i" "%o.svg"; mv "%o.svg" "%o"\"/>"
" <delegate decode=\"https\" command=\""curl" -s -k -L -o "%o" "https:%M"\"/>"
" <delegate decode=\"doc\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"docx\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"dng:decode\" command=\""ufraw-batch" --silent --create-id=also --out-type=png --out-depth=16 "--output=%u.png" "%i"\"/>"
" <delegate decode=\"dot\" command=\""dot" -Tsvg "%i" -o "%o"\"/>"
" <delegate decode=\"dvi\" command=\""dvips" -sstdout=%%stderr -o "%o" "%i"\"/>"
" <delegate decode=\"dxf\" command=\""uniconvertor" "%i" "%o.svg"; mv "%o.svg" "%o"\"/>"
" <delegate decode=\"edit\" stealth=\"True\" command=\""xterm" -title "Edit Image Comment" -e vi "%o"\"/>"
" <delegate decode=\"eps\" encode=\"pdf\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 "-sDEVICE=pdfwrite" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"eps\" encode=\"ps\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=ps2write" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"fig\" command=\""uniconvertor" "%i" "%o.svg"; mv "%o.svg" "%o"\"/>"
" <delegate decode=\"hpg\" command=\""hp2xx" -sstdout=%%stderr -m eps -f `basename "%o"` "%i"; mv -f `basename "%o"` "%o"\"/>"
" <delegate decode=\"hpgl\" command=\""hp2xx" -sstdout=%%stderr -m eps -f `basename "%o"` "%i"; mv -f `basename "%o"` "%o"\"/>"
" <delegate decode=\"htm\" command=\""html2ps" -U -o "%o" "%i"\"/>"
" <delegate decode=\"html\" command=\""html2ps" -U -o "%o" "%i"\"/>"
" <delegate decode=\"ilbm\" command=\""ilbmtoppm" "%i" > "%o"\"/>"
" <delegate decode=\"jpg\" encode=\"lep\" mode=\"encode\" command=\""lepton" "%i" "%o"\"/>"
" <delegate decode=\"jxr\" command=\"mv "%i" "%i.jxr"; "JxrDecApp" -i "%i.jxr" -o "%o.tiff"; mv "%i.jxr" "%i"; mv "%o.tiff" "%o"\"/>"
" <delegate decode=\"lep\" mode=\"decode\" command=\""lepton" "%i" "%o"\"/>"
" <delegate decode=\"odt\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"pcl:cmyk\" stealth=\"True\" command=\""pcl6" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pamcmyk32" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"pcl:color\" stealth=\"True\" command=\""pcl6" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=ppmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"pcl:mono\" stealth=\"True\" command=\""pcl6" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pbmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"pdf\" encode=\"eps\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 -sPDFPassword="%a" "-sDEVICE=eps2write" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"pdf\" encode=\"ps\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=ps2write" -sPDFPassword="%a" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"png\" encode=\"clipboard\" command=\""xclip" -selection clipboard -t image/png "%i"\"/>"
" <delegate decode=\"clipboard\" command=\""xclip" -selection clipboard -o > "%o"\"/>"
" <delegate decode=\"png\" encode=\"webp\" command=\""cwebp" -quiet -q %Q "%i" -o "%o"\"/>"
" <delegate decode=\"pnm\" encode=\"ilbm\" mode=\"encode\" command=\""ppmtoilbm" -24if "%i" > "%o"\"/>"
" <delegate decode=\"tiff\" encode=\"jxr\" command=\"mv "%i" "%i.tiff"; "JxrEncApp" -i "%i.tiff" -o "%o.jxr"; mv "%i.tiff" "%i"; mv "%o.jxr" "%o"\"/>"
" <delegate decode=\"tiff\" encode=\"wdp\" command=\"mv "%i" "%i.tiff"; "JxrEncApp" -i "%i.tiff" -o "%o.jxr"; mv "%i.tiff" "%i"; mv "%o.jxr" "%o"\"/>"
" <delegate decode=\"ppt\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"pptx\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"ps\" encode=\"prt\" command=\""lpr" "%i"\"/>"
" <delegate decode=\"ps:alpha\" stealth=\"True\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pngalpha" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "-f%s" "-f%s"\"/>"
" <delegate decode=\"ps:cmyk\" stealth=\"True\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pamcmyk32" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "-f%s" "-f%s"\"/>"
" <delegate decode=\"ps:color\" stealth=\"True\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pnmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "-f%s" "-f%s"\"/>"
" <delegate decode=\"ps\" encode=\"eps\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=eps2write" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"ps\" encode=\"pdf\" mode=\"bi\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pdfwrite" "-sOutputFile=%o" "-f%i"\"/>"
" <delegate decode=\"ps\" encode=\"print\" mode=\"encode\" command=\"lpr "%i"\"/>"
" <delegate decode=\"ps:mono\" stealth=\"True\" command=\""gs" -sstdout=%%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pbmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "-f%s" "-f%s"\"/>"
" <delegate decode=\"shtml\" command=\""html2ps" -U -o "%o" "%i"\"/>"
" <delegate decode=\"sid\" command=\""mrsidgeodecode" -if sid -i "%i" -of tif -o "%o" > "%u"\"/>"
" <delegate decode=\"svg\" command=\""rsvg-convert" --dpi-x %x --dpi-y %y -o "%o" "%i"\"/>"
#ifndef MAGICKCORE_RSVG_DELEGATE
" <delegate decode=\"svg:decode\" stealth=\"True\" command=\""inkscape" "%s" --export-png="%s" --export-dpi="%s" --export-background="%s" --export-background-opacity="%s"\"/>"
#endif
" <delegate decode=\"tiff\" encode=\"launch\" mode=\"encode\" command=\""gimp" "%i"\"/>"
" <delegate decode=\"wdp\" command=\"mv "%i" "%i.jxr"; "JxrDecApp" -i "%i.jxr" -o "%o.tiff"; mv "%i.jxr" "%i"; mv "%o.tiff" "%o"\"/>"
" <delegate decode=\"webp\" command=\""dwebp" -pam "%i" -o "%o"\"/>"
" <delegate decode=\"xls\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"xlsx\" command=\""soffice" --convert-to pdf -outdir `dirname "%i"` "%i" 2> "%u"; mv "%i.pdf" "%o"\"/>"
" <delegate decode=\"xps:cmyk\" stealth=\"True\" command=\""gxps" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=bmpsep8" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"xps:color\" stealth=\"True\" command=\""gxps" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=ppmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"xps:mono\" stealth=\"True\" command=\""gxps" -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pbmraw" -dTextAlphaBits=%u -dGraphicsAlphaBits=%u "-r%s" %s "-sOutputFile=%s" "%s"\"/>"
" <delegate decode=\"video:decode\" command=\""ffmpeg" -nostdin -loglevel error -i "%s" -an -f rawvideo -y %s "%s"\"/>"
" <delegate encode=\"video:encode\" stealth=\"True\" command=\""ffmpeg" -nostdin -loglevel error -i "%s%%d.%s" %s "%s.%s"\"/>"
"</delegatemap>";
/*
Global declarations.
*/
static LinkedListInfo
*delegate_cache = (LinkedListInfo *) NULL;
static SemaphoreInfo
*delegate_semaphore = (SemaphoreInfo *) NULL;
/*
Forward declarations.
*/
static MagickBooleanType
IsDelegateCacheInstantiated(ExceptionInfo *),
LoadDelegateCache(LinkedListInfo *,const char *,const char *,const size_t,
ExceptionInfo *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c q u i r e D e l e g a t e C a c h e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% AcquireDelegateCache() caches one or more delegate configurations which
% provides a mapping between delegate attributes and a delegate name.
%
% The format of the AcquireDelegateCache method is:
%
% LinkedListInfo *AcquireDelegateCache(const char *filename,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o filename: the font file name.
%
% o exception: return any errors or warnings in this structure.
%
*/
static LinkedListInfo *AcquireDelegateCache(const char *filename,
ExceptionInfo *exception)
{
LinkedListInfo
*cache;
cache=NewLinkedList(0);
#if !MAGICKCORE_ZERO_CONFIGURATION_SUPPORT
{
const StringInfo
*option;
LinkedListInfo
*options;
options=GetConfigureOptions(filename,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
while (option != (const StringInfo *) NULL)
{
(void) LoadDelegateCache(cache,(const char *)
GetStringInfoDatum(option),GetStringInfoPath(option),0,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
}
options=DestroyConfigureOptions(options);
}
#else
magick_unreferenced(filename);
#endif
if (IsLinkedListEmpty(cache) != MagickFalse)
(void) LoadDelegateCache(cache,DelegateMap,"built-in",0,exception);
return(cache);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ D e l e g a t e C o m p o n e n t G e n e s i s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DelegateComponentGenesis() instantiates the delegate component.
%
% The format of the DelegateComponentGenesis method is:
%
% MagickBooleanType DelegateComponentGenesis(void)
%
*/
MagickPrivate MagickBooleanType DelegateComponentGenesis(void)
{
if (delegate_semaphore == (SemaphoreInfo *) NULL)
delegate_semaphore=AcquireSemaphoreInfo();
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D e l e g a t e C o m p o n e n t T e r m i n u s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DelegateComponentTerminus() destroys the delegate component.
%
% The format of the DelegateComponentTerminus method is:
%
% DelegateComponentTerminus(void)
%
*/
static void *DestroyDelegate(void *delegate_info)
{
DelegateInfo
*p;
p=(DelegateInfo *) delegate_info;
if (p->path != (char *) NULL)
p->path=DestroyString(p->path);
if (p->decode != (char *) NULL)
p->decode=DestroyString(p->decode);
if (p->encode != (char *) NULL)
p->encode=DestroyString(p->encode);
if (p->commands != (char *) NULL)
p->commands=DestroyString(p->commands);
if (p->semaphore != (SemaphoreInfo *) NULL)
RelinquishSemaphoreInfo(&p->semaphore);
p=(DelegateInfo *) RelinquishMagickMemory(p);
return((void *) NULL);
}
MagickPrivate void DelegateComponentTerminus(void)
{
if (delegate_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&delegate_semaphore);
LockSemaphoreInfo(delegate_semaphore);
if (delegate_cache != (LinkedListInfo *) NULL)
delegate_cache=DestroyLinkedList(delegate_cache,DestroyDelegate);
UnlockSemaphoreInfo(delegate_semaphore);
RelinquishSemaphoreInfo(&delegate_semaphore);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ E x t e r n a l D e l e g a t e C o m m a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ExternalDelegateCommand() executes the specified command and waits until it
% terminates. The returned value is the exit status of the command.
%
% The format of the ExternalDelegateCommand method is:
%
% int ExternalDelegateCommand(const MagickBooleanType asynchronous,
% const MagickBooleanType verbose,const char *command,
% char *message,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o asynchronous: a value other than 0 executes the parent program
% concurrently with the new child process.
%
% o verbose: a value other than 0 prints the executed command before it is
% invoked.
%
% o command: this string is the command to execute.
%
% o message: an option buffer to receive any message posted to stdout or
% stderr.
%
% o exception: return any errors here.
%
*/
MagickExport int ExternalDelegateCommand(const MagickBooleanType asynchronous,
const MagickBooleanType verbose,const char *command,char *message,
ExceptionInfo *exception)
{
char
**arguments,
*sanitize_command;
int
number_arguments,
status;
PolicyDomain
domain;
PolicyRights
rights;
ssize_t
i;
status=(-1);
arguments=StringToArgv(command,&number_arguments);
if (arguments == (char **) NULL)
return(status);
if (*arguments[1] == '\0')
{
for (i=0; i < (ssize_t) number_arguments; i++)
arguments[i]=DestroyString(arguments[i]);
arguments=(char **) RelinquishMagickMemory(arguments);
return(-1);
}
rights=ExecutePolicyRights;
domain=DelegatePolicyDomain;
if (IsRightsAuthorized(domain,rights,arguments[1]) == MagickFalse)
{
errno=EPERM;
(void) ThrowMagickException(exception,GetMagickModule(),PolicyError,
"NotAuthorized","`%s'",arguments[1]);
for (i=0; i < (ssize_t) number_arguments; i++)
arguments[i]=DestroyString(arguments[i]);
arguments=(char **) RelinquishMagickMemory(arguments);
return(-1);
}
if (verbose != MagickFalse)
{
(void) FormatLocaleFile(stderr,"%s\n",command);
(void) fflush(stderr);
}
sanitize_command=SanitizeString(command);
if (asynchronous != MagickFalse)
(void) ConcatenateMagickString(sanitize_command,"&",MagickPathExtent);
if (message != (char *) NULL)
*message='\0';
#if defined(MAGICKCORE_POSIX_SUPPORT)
#if defined(MAGICKCORE_HAVE_POPEN)
if ((asynchronous == MagickFalse) && (message != (char *) NULL))
{
FILE
*file;
file=popen_utf8(sanitize_command,"r");
if (file == (FILE *) NULL)
status=system(sanitize_command);
else
{
size_t
offset = 0;
while ((offset < MagickPathExtent) &&
(fgets(message+offset,MagickPathExtent-offset,file) != NULL))
offset+=strlen(message);
status=pclose(file);
}
}
else
#endif
{
#if !defined(MAGICKCORE_HAVE_EXECVP)
status=system(sanitize_command);
#else
if ((asynchronous != MagickFalse) ||
(strpbrk(sanitize_command,"&;<>|") != (char *) NULL))
status=system(sanitize_command);
else
{
pid_t
child_pid;
/*
Call application directly rather than from a shell.
*/
child_pid=(pid_t) fork();
if (child_pid == (pid_t) -1)
status=system(sanitize_command);
else
if (child_pid == 0)
{
status=execvp(arguments[1],arguments+1);
_exit(1);
}
else
{
int
child_status;
pid_t
pid;
child_status=0;
pid=(pid_t) waitpid(child_pid,&child_status,0);
if (pid == -1)
status=(-1);
else
{
if (WIFEXITED(child_status) != 0)
status=WEXITSTATUS(child_status);
else
if (WIFSIGNALED(child_status))
status=(-1);
}
}
}
#endif
}
#elif defined(MAGICKCORE_WINDOWS_SUPPORT)
{
char
*p;
/*
If a command shell is executed we need to change the forward slashes in
files to a backslash. We need to do this to keep Windows happy when we
want to 'move' a file.
TODO: This won't work if one of the delegate parameters has a forward
slash as a parameter.
*/
p=strstr(sanitize_command,"cmd.exe /c");
if (p != (char*) NULL)
{
p+=10;
for ( ; *p != '\0'; p++)
if (*p == '/')
*p=(*DirectorySeparator);
}
}
status=NTSystemCommand(sanitize_command,message);
#elif defined(vms)
status=system(sanitize_command);
#else
# error No suitable system() method.
#endif
if (status < 0)
{
if ((message != (char *) NULL) && (*message != '\0'))
(void) ThrowMagickException(exception,GetMagickModule(),DelegateError,
"FailedToExecuteCommand","`%s' (%s)",sanitize_command,message);
else
(void) ThrowMagickException(exception,GetMagickModule(),DelegateError,
"FailedToExecuteCommand","`%s' (%d)",sanitize_command,status);
}
sanitize_command=DestroyString(sanitize_command);
for (i=0; i < (ssize_t) number_arguments; i++)
arguments[i]=DestroyString(arguments[i]);
arguments=(char **) RelinquishMagickMemory(arguments);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t D e l e g a t e C o m m a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetDelegateCommand() replaces any embedded formatting characters with the
% appropriate image attribute and returns the resulting command.
%
% The format of the GetDelegateCommand method is:
%
% char *GetDelegateCommand(const ImageInfo *image_info,Image *image,
% const char *decode,const char *encode,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o command: Method GetDelegateCommand returns the command associated
% with specified delegate tag.
%
% o image_info: the image info.
%
% o image: the image.
%
% o decode: Specifies the decode delegate we are searching for as a
% character string.
%
% o encode: Specifies the encode delegate we are searching for as a
% character string.
%
% o exception: return any errors or warnings in this structure.
%
*/
static char *GetMagickPropertyLetter(ImageInfo *image_info,Image *image,
const char letter,ExceptionInfo *exception)
{
#define WarnNoImageReturn(format,letter) \
if (image == (Image *) NULL) \
{ \
(void) ThrowMagickException(exception,GetMagickModule(),OptionWarning, \
"NoImageForProperty",format,letter); \
break; \
}
#define WarnNoImageInfoReturn(format,letter) \
if (image_info == (ImageInfo *) NULL) \
{ \
(void) ThrowMagickException(exception,GetMagickModule(),OptionWarning, \
"NoImageInfoForProperty",format,letter); \
break; \
}
char
value[MagickPathExtent];
const char
*string;
if ((image != (Image *) NULL) && (IsEventLogging() != MagickFalse))
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
else
if ((image_info != (ImageInfo *) NULL) && (IsEventLogging() != MagickFalse))
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s","no-images");
/*
Get properties that are directly defined by images.
*/
*value='\0'; /* formatted string */
string=(const char *) value;
switch (letter)
{
case 'a': /* authentication passphrase */
{
WarnNoImageInfoReturn("\"%%%c\"",letter);
string=GetImageOption(image_info,"authenticate");
break;
}
case 'b': /* image size read in - in bytes */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatMagickSize(image->extent,MagickFalse,"B",MagickPathExtent,
value);
if (image->extent == 0)
(void) FormatMagickSize(GetBlobSize(image),MagickFalse,"B",
MagickPathExtent,value);
break;
}
case 'd': /* Directory component of filename */
{
WarnNoImageReturn("\"%%%c\"",letter);
GetPathComponent(image->magick_filename,HeadPath,value);
break;
}
case 'e': /* Filename extension (suffix) of image file */
{
WarnNoImageReturn("\"%%%c\"",letter);
GetPathComponent(image->magick_filename,ExtensionPath,value);
break;
}
case 'f': /* Filename without directory component */
{
WarnNoImageReturn("\"%%%c\"",letter);
GetPathComponent(image->magick_filename,TailPath,value);
break;
}
case 'g': /* Image geometry, canvas and offset %Wx%H+%X+%Y */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,
"%.20gx%.20g%+.20g%+.20g",(double) image->page.width,(double)
image->page.height,(double) image->page.x,(double) image->page.y);
break;
}
case 'h': /* Image height (current) */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(image->rows != 0 ? image->rows : image->magick_rows));
break;
}
case 'i': /* Filename last used for an image (read or write) */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=image->filename;
break;
}
case 'm': /* Image format (file magick) */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=image->magick;
break;
}
case 'n': /* Number of images in the list. */
{
if (image != (Image *) NULL)
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
GetImageListLength(image));
break;
}
case 'o': /* Output Filename */
{
WarnNoImageInfoReturn("\"%%%c\"",letter);
string=image_info->filename;
break;
}
case 'p': /* Image index in current image list */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
GetImageIndexInList(image));
break;
}
case 'q': /* Quantum depth of image in memory */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
MAGICKCORE_QUANTUM_DEPTH);
break;
}
case 'r': /* Image storage class, colorspace, and alpha enabled. */
{
ColorspaceType
colorspace;
WarnNoImageReturn("\"%%%c\"",letter);
colorspace=image->colorspace;
(void) FormatLocaleString(value,MagickPathExtent,"%s %s %s",
CommandOptionToMnemonic(MagickClassOptions,(ssize_t)
image->storage_class),CommandOptionToMnemonic(MagickColorspaceOptions,
(ssize_t) colorspace),image->alpha_trait != UndefinedPixelTrait ?
"Alpha" : "");
break;
}
case 's': /* Image scene number */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
image->scene);
break;
}
case 't': /* Base filename without directory or extension */
{
WarnNoImageReturn("\"%%%c\"",letter);
GetPathComponent(image->magick_filename,BasePath,value);
break;
}
case 'u': /* Unique filename */
{
WarnNoImageInfoReturn("\"%%%c\"",letter);
string=image_info->unique;
break;
}
case 'w': /* Image width (current) */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(image->columns != 0 ? image->columns : image->magick_columns));
break;
}
case 'x': /* Image horizontal resolution (with units) */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",
fabs(image->resolution.x) > MagickEpsilon ? image->resolution.x :
image->units == PixelsPerCentimeterResolution ? DefaultResolution/2.54 :
DefaultResolution);
break;
}
case 'y': /* Image vertical resolution (with units) */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",
fabs(image->resolution.y) > MagickEpsilon ? image->resolution.y :
image->units == PixelsPerCentimeterResolution ? DefaultResolution/2.54 :
DefaultResolution);
break;
}
case 'z': /* Image depth as read in */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",
(double) image->depth);
break;
}
case 'A': /* Image alpha channel */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=CommandOptionToMnemonic(MagickPixelTraitOptions,(ssize_t)
image->alpha_trait);
break;
}
case 'C': /* Image compression method. */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=CommandOptionToMnemonic(MagickCompressOptions,
(ssize_t) image->compression);
break;
}
case 'D': /* Image dispose method. */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=CommandOptionToMnemonic(MagickDisposeOptions,
(ssize_t) image->dispose);
break;
}
case 'F':
{
/*
Magick filename - filename given incl. coder & read mods.
*/
WarnNoImageReturn("\"%%%c\"",letter);
(void) CopyMagickString(value,image->magick_filename,MagickPathExtent);
break;
}
case 'G': /* Image size as geometry = "%wx%h" */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20gx%.20g",
(double) image->magick_columns,(double) image->magick_rows);
break;
}
case 'H': /* layer canvas height */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",
(double) image->page.height);
break;
}
case 'I': /* image iterations for animations */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
image->iterations);
break;
}
case 'M': /* Magick filename - filename given incl. coder & read mods */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=image->magick_filename;
break;
}
case 'O': /* layer canvas offset with sign = "+%X+%Y" */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%+ld%+ld",(long)
image->page.x,(long) image->page.y);
break;
}
case 'P': /* layer canvas page size = "%Wx%H" */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20gx%.20g",
(double) image->page.width,(double) image->page.height);
break;
}
case '~': /* BPG image compression quality */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(100-(image->quality == 0 ? 42 : image->quality))/2);
break;
}
case 'Q': /* image compression quality */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(image->quality == 0 ? 92 : image->quality));
break;
}
case 'S': /* Number of scenes in image list. */
{
WarnNoImageInfoReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
(image_info->number_scenes == 0 ? 2147483647 :
image_info->number_scenes));
break;
}
case 'T': /* image time delay for animations */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
image->delay);
break;
}
case 'U': /* Image resolution units. */
{
WarnNoImageReturn("\"%%%c\"",letter);
string=CommandOptionToMnemonic(MagickResolutionOptions,
(ssize_t) image->units);
break;
}
case 'W': /* layer canvas width */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%.20g",(double)
image->page.width);
break;
}
case 'X': /* layer canvas X offset */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%+.20g",(double)
image->page.x);
break;
}
case 'Y': /* layer canvas Y offset */
{
WarnNoImageReturn("\"%%%c\"",letter);
(void) FormatLocaleString(value,MagickPathExtent,"%+.20g",(double)
image->page.y);
break;
}
case '%': /* percent escaped */
{
string="%";
break;
}
case '@': /* Trim bounding box, without actually trimming! */
{
RectangleInfo
page;
WarnNoImageReturn("\"%%%c\"",letter);
page=GetImageBoundingBox(image,exception);
(void) FormatLocaleString(value,MagickPathExtent,
"%.20gx%.20g%+.20g%+.20g",(double) page.width,(double) page.height,
(double) page.x,(double) page.y);
break;
}
case '#':
{
/*
Image signature.
*/
WarnNoImageReturn("\"%%%c\"",letter);
(void) SignatureImage(image,exception);
string=GetImageProperty(image,"signature",exception);
break;
}
}
return(SanitizeDelegateString(string));
}
static char *InterpretDelegateProperties(ImageInfo *image_info,
Image *image,const char *embed_text,ExceptionInfo *exception)
{
#define ExtendInterpretText(string_length) \
{ \
size_t length=(string_length); \
if ((size_t) (q-interpret_text+(ssize_t) length+1) >= extent) \
{ \
extent+=length; \
interpret_text=(char *) ResizeQuantumMemory(interpret_text,extent+ \
MagickPathExtent,sizeof(*interpret_text)); \
if (interpret_text == (char *) NULL) \
return((char *) NULL); \
q=interpret_text+strlen(interpret_text); \
} \
}
#define AppendKeyValue2Text(key,value)\
{ \
size_t length=strlen(key)+strlen(value)+2; \
if ((size_t) (q-interpret_text+length+1) >= extent) \
{ \
extent+=length; \
interpret_text=(char *) ResizeQuantumMemory(interpret_text,extent+ \
MagickPathExtent,sizeof(*interpret_text)); \
if (interpret_text == (char *) NULL) \
return((char *) NULL); \
q=interpret_text+strlen(interpret_text); \
} \
q+=FormatLocaleString(q,extent,"%s=%s\n",(key),(value)); \
}
#define AppendString2Text(string) \
{ \
size_t length=strlen((string)); \
if ((size_t) (q-interpret_text+(ssize_t) length+1) >= extent) \
{ \
extent+=length; \
interpret_text=(char *) ResizeQuantumMemory(interpret_text,extent+ \
MagickPathExtent,sizeof(*interpret_text)); \
if (interpret_text == (char *) NULL) \
return((char *) NULL); \
q=interpret_text+strlen(interpret_text); \
} \
(void) CopyMagickString(q,(string),extent); \
q+=length; \
}
char
*interpret_text,
*string;
char
*q; /* current position in interpret_text */
const char
*p; /* position in embed_text string being expanded */
size_t
extent; /* allocated length of interpret_text */
MagickBooleanType
number;
assert(image == NULL || image->signature == MagickCoreSignature);
assert(image_info == NULL || image_info->signature == MagickCoreSignature);
if ((image != (Image *) NULL) && (IsEventLogging() != MagickFalse))
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
else
if ((image_info != (ImageInfo *) NULL) && (IsEventLogging() != MagickFalse))
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s","no-image");
if (embed_text == (const char *) NULL)
return(ConstantString(""));
p=embed_text;
while ((isspace((int) ((unsigned char) *p)) != 0) && (*p != '\0'))
p++;
if (*p == '\0')
return(ConstantString(""));
/*
Translate any embedded format characters.
*/
interpret_text=AcquireString(embed_text); /* new string with extra space */
extent=MagickPathExtent; /* allocated space in string */
number=MagickFalse; /* is last char a number? */
for (q=interpret_text; *p!='\0';
number=isdigit((int) ((unsigned char) *p)) ? MagickTrue : MagickFalse,p++)
{
/*
Interpret escape characters (e.g. Filename: %M).
*/
*q='\0';
ExtendInterpretText(MagickPathExtent);
switch (*p)
{